The Corbeau RXC X System 5 XL, 800. The carbon fibre RXC in the wide shell, FIA 8855-1999, side mount, fabric trimmed, for drivers under six feet with a 36 to 40 inch waist.
System 5 is the carbon shell
Corbeau grade the RXC X in three constructions. System 1 is fibreglass at 600 in XL, System 3 is Kevlar at 700, and this System 5 is carbon at 800. The shape is the same across all three; what changes is the weight and the stiffness of the shell. Carbon is the lightest of the three and the one to have if you are counting grams.
Two hundred pounds separates fibreglass from carbon in this size, which is not much for the difference in a seat you will sit in for years.
Under six feet, and the XL width
The RXC X is listed for drivers under 6ft, which is about shell height and where your shoulders land against the wings rather than legroom. The XL is the wide version for a 36 to 40 inch waist. The standard System 5 at 775 suits 32 to 36.
Colours and extras
The shell can be had in black, blue, grey, orange, purple, red, white or yellow, or to a RAL code you specify. Personal name embroidery and an inflatable lumbar support are optional extras. Say what you want when you order, since a coloured shell is made to that order.
Side mount, FIA
Side mount, so it hangs between side mounts on a frame. FIA 8855-1999, with the expiry on the seat’s own label, normally five years from manufacture and extendable by two.
Seat only. Tell us the car and we will add the mounts and frame.
Have you written anything about this exact product?
Yes, we have covered this exact product: Corbeau RXC Bucket Seats Now Live. That is first-hand coverage from our own builds and showroom, not brochure copy.
Will I fit in this seat?
The maker sizes this seat for drivers under 6ft in height with a 36in to 38in or 36in to 40in waist. Those are the paper numbers; how a seat actually feels to sit in and climb out of is a different question, and our showroom team sit in these seats every day, so call us with your height and waist and we will give you the honest answer.
Is it FIA approved, and for how long?
Yes, it carries FIA 8855-1999 homologation. Every FIA seat has a not-valid-after year printed on its homologation label, and that label date is what a scrutineer checks, so look at the label on the seat you receive and check it against your championship regulations. Buying new means you get the freshest label the maker currently produces.
What do I need to fit it to my car?
This is a side-mount seat: it hangs between side brackets, the motorsport-style stack with fine height and angle control. You will need the car-specific frame, and a sliding runner if you want fore-and-aft adjustment. Our guide on base mount versus side mount walks through the whole stack, and tell us your car and we will quote the full kit.
How do I know it will feel right, not just fit on paper?
Fair question, because makers publish widths and weights, never feel, and two seats with identical numbers can feel nothing alike in the car. We keep the ranges on display in the Nottingham showroom, you are welcome to come and sit in them, and if you cannot get to us, call and describe your build, as the team sit in these seats every day. Our head support measurements guide shows the kind of real-world data we collect.
